Winston L. Shelton

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Winston Laverne Shelton
File:Winston Laverne Shelton Portrait.jpeg
Born Winston Laverne Shelton
(1922-05-03)May 3, 1922
Lockwood, West Virginia
Occupation Inventor, Engineer, Entrepreneur

Winston Laverne Shelton (born May 3, 1922) is an American inventor, electrical engineer and entrepreneur who has been awarded 76 US patents as an individual or as part of a team, as well as many corresponding patents. Shelton's patents have had an impact relating to home washing machines and the preparation of food in the Quick Service Restaurant (QSR) industry. Technologies Shelton developed while an engineer at General Electric are still in use after more than fifty years. His patent "Washing Machine" (US 3257830 A),[1] licensed in 1965 to General Electric has been referenced in over 40 subsequent patents.

Shelton also invented new ways to cook and hold food, including the Collectramatic, the first pressurized fryer that did not require interrupting production to frequently filter shortening while cooking. Shelton also invented Controlled Vapor Technology, a patented cooking method that uses water vapor to prepare and safely hold food.[2]

Early life

Born in Lockwood, West Virginia, in 1922, Shelton was the youngest of Naaman Shelton (1889–1962) and Opal Dell (née Keenan) Shelton's (1895–1979) five children. Opal Shelton operated the "Crossroads Restaurant", a roadside diner next to the family's Standard Oil service station in Clay, West Virginia, where young Shelton had his first exposure to food service, helping his mother in the diner's kitchen.[3] Shelton enlisted in the US Army in 1943, serving at Princeton University in the School of Engineering and was discharged in 1945. Shelton's education includes attending Greenbrier Military School,[4] Princeton University and West Virginia University, earning a Bachelor of Science degree in Electrical Engineering in 1948.[5]

Inventions at GE

Shelton's career at General Electric began in 1948 as an engineer in the GE Home Laundry facility in Trenton, New Jersey. In 1952, Shelton transferred to the new General Electric Appliance Park in Louisville, Kentucky as a Research and Development Engineer when the Trenton Home Laundry division was consolidated there along with GE's other major appliance product lines.[3] His tenure there spanned two decades. While there, his inventions earned 35 patents, primarily related to the drum washing machine, all assigned to GE. His inventions helped create and refine the modern, top-loading, rotating spiral agitator clothes washer. Shelton invented the mechanism to automatically provide the correct water level(s) at a desired water temperature during a washing machine's cycles[6] and an easily removed and cleaned soil trap that strained insoluble dirt and debris as the unit's water was filtered through it during the wash and rinse cycles.[7] GE marketed Shelton's invention as the "Filter-Flo Basket."[8] The unit fit on top of the washing machine's agitator post and rotated during use. Shelton's inventions also included an anti-siphonage inlet system (US 2638112) to avoid back contamination of a water supply,[9] and a drain overflow arrangement for built-in washing machines that provided a safe means of dealing with excess water during operation.[10]

Winston Industries

Shelton resigned from GE in 1968 and formed the Engineering Prototype Services (EPS) with his brother, Naaman Shelton, Jr (1919-1990) in Louisville, Kentucky where he could work on projects outside of the GE product line.[3] Colonel Sanders was one of the first investors in the new company.[11] The company name was changed to Winston Industries in 1984.

The majority of Shelton's inventions after founding Winston Industries focused on solving problems in the food industry. His patents relating to food preparation include an automatic oven that cooks food and then automatically drops the cooked food onto a pivoting platform for sale (US 5990452 A),[12] a food storage device that provides a method of controlling humidity in the cooking chamber (US 5595109 A)[13] and a thermalizing apparatus using both wet bulb and dry bulb temperature sensors to more precisely control cooking parameters inside a cooking chamber (US 6521871 B1).[14]

The Collectramatic and KFC success

An early customer, filtering-equipment manufacturer Carl Mies, asked Shelton to engineer a pressure fryer for cooking chicken to replace the dangerous process then used by Kentucky Fried Chicken. Workers at Kentucky Fried Chicken franchises fried chicken in stove top pressure cookers using 400-degree shortening, leading to burns and exploding pressure cookers. Shelton said "I watched that madness and thought, 'That's an engineer's dream, man!' There were so many problems to solve, and that was just the low-hanging fruit."[3]

After inventing a fryer with Mies,[15] Shelton then invented the Collectramatic in 1969, a stationary, self-filtering fryer, employing precision time and temperature controls to meet Kentucky Fried Chicken founder Colonel Harland Sanders' legendary exacting standards.[16] Shelton's self-filtering fryer allowed KFC restaurants to continuously fry multiple batches of chicken without interruption.[17][18] Colonel Sanders "enthusiastically supported" the Collectramatic.[19]

Shelton's Collectramatic helped fuel KFC's rapid expansion and success. Same store KFC sales grew nearly 400% in the short term. According to Fred Jeffries, the chain's vice president of purchasing at the time: "Stores were doing about $200,000 a year in sales on average with the pots . . . but they could never have done the $900,000 a year it became without Win's fryer. He helped set the stage for that with true engineering thinking."[3]

Controlled Vapor Technology

Colonel Sanders asked Shelton to invent a better way to hold just fried KFC chicken so the crust would not get soggy as the food was held for sale.[20] Shelton invented a process in which cooked food was held in a controlled water vapor atmosphere heated to the food's desired finished temperature. Shelton named his invention "Controlled Vapor Technology".[21] Shelton's food holding device using his Controlled Vapor Technology was named the "Controlled Vapor Oven" or "CVap Oven", a device that could indefinitely hold food safely at both a desired temperature and texture.[22] Shelton was awarded a US Patent in 1996 for his invention of Controlled Vapor Technology and the Controlled Vapor Oven.[2]

Shelton explained the Controlled Vapor Technology process as using water vapor, rather than air, as the medium for heading food, since air dries foods.[23] Subsequent research proved food could be prepared to exacting precision using Shelton's Controlled Vapor Technology, allowing chefs much greater control over interior and exterior moisture, temperature and time during the preparation of many foods.[23]

Starting in 2008, the CVap oven was tested by University of Kentucky College of Agriculture, Food and Environment Food Systems Innovation Center, validating the safe processing of proteins in CVap ovens during a five-year testing program.[24] According to Nathan Myhrvold, founder of The Cooking Lab, "... the CVap provides better temperature stability than any ordinary oven or holding cabinet does."[25] Another benefit of the CVAp process is that it results in less product loss during cooking, which translates into higher profit. Farmhaus restaurant chef-owner Kevin Willmann explained the benefit in cooking porchetta in a CVap oven. Conventional ovening resulted in a loss of 25 to 40 percent of the meat's initial weight. "You go to CVap and that can't happen because the environment is so humid that moisture can't leave." Willman claimed a loss of less than 10 percent when cooking the same recipe in a CVap oven.[26]

CVap ovens are used by fine-dining chefs, hotels, school cafeterias and fast-food operators in kitchens around the world.[24][26]

Current activities

Teaching

Shelton continues to teach chefs and dietitians throughout the world the science behind controlling food temperatures and food texture using his Controlled Vapor Technology. William H. Bender, founder of Foodservice Consultants Society International said "He (Shelton) has translated complex food and science issues into equipment solutions ... CVap revolutionizes food best practices dramatically. (Shelton) has correctly aligned the science and purpose of food temperature control and controlling food moisture."[23]

Continued research

Having stepped down as CEO of Winston Industries, Shelton continues to head the Advanced Engineering department at the company.[27]

His daughter, Valerie Shelton was named President and CEO of Winston Industries in 2010.[28]

Publications

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Awards

  • 2010 Foodservice Equipment and Supplies (FE&S) Best in Class Consultants - Heavy Equipment - CVap Cook & Hold Ovens
  • 2009 International Association of Culinary Professionals (IACP) Lifetime Achievement Award "...for his (Shelton's) remarkable equipment and technology contributions to the culinary industry."
  • 2009 International Association of Culinary Professionals (IACP) Award of Excellence
  • 2008 StarChefs International Chefs Congress Innovator Awards
  • 2008 YUM! Brands Golden Bucket Award
  • 2008 YUM! Brands YRI Equipment Supplier of the Year
  • 2007 YUM! Brands Asia Business Relationship Award
  • 2006 Foodservice Consultants Society International (FCSI) Education Provider of the Year
  • 2001 Energy Foodservice Council's Manufacturer of the Year
  • 1999 Electric Foodservice Council Manufacturer of the Year
  • 1999 R&D Process Development & Equipment Technology Group's Vendor of the Year
  • 1998 Johnson & Wales University Honorary Degree (to foodservice and hospitality industry professionals)
  • 1998 Research Chefs Association (RCA) Pioneer Award Recipient
  • 1996 Honorary Doctorate of Business Administration degree from Sullivan University, Louisville, KY

References

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